import Vue from 'vue'
import VueRouter from 'vue-router'
import Cookie from 'js-cookie'
Vue.use(VueRouter)
const Main = () => import('../views/MaIn.vue')
// const Home = () => import('../views/HoMe.vue')
// const User = () => import('../views/UsEr.vue')
// const Mall = () => import('../views/maLl.vue')
// const pageone = () => import('../views/PageOne.vue')
// const pagetwo = () => import('../views/PageTwo.vue')
const LoGin = () => import('../views/LoGin.vue')
const routes = [
  {
    path: '/',
    redirect: '/home',
    name: 'Main',
    component: Main,
    children: [
      // {
      //   path: 'home',
      //   component: Home
      // },
      // {
      //   path: 'user',
      //   component: User
      // },
      // {
      //   path: 'mall',
      //   component: Mall
      // },
      // {
      //   path: 'page1',
      //   component: pageone
      // },
      // {
      //   path: 'page2',
      //   component: pagetwo
      // }
    ]
  },
  {
    path: '/login',
    component: LoGin
  }
]
//需要重写VueRouter.prototype原型对象身上的push|replace方法
//先把VueRouter.prototype身上的push|replace方法进行保存一份
let originPush = VueRouter.prototype.push
let originReplace = VueRouter.prototype.replace
//重写VueRouter.prototype身上的push方法了
VueRouter.prototype.push = function (location, resolve, reject) {
  //第一个形参：路由跳转的配置对象（query|params）
  //第二个参数：undefined|箭头函数（成功的回调）
  //第三个参数:undefined|箭头函数（失败的回调）
  if (resolve && reject) {
    //push方法传递第二个参数|第三个参数（箭头函数）
    //originPush：利用call修改上下文，变为(路由组件.$router)这个对象，第二参数：配置对象、第三、第四个参数：成功和失败回调函数
    originPush.call(this, location, resolve, reject)
  } else {
    //push方法没有产地第二个参数|第三个参数
    originPush.call(
      this,
      location,
      () => {},
      () => {}
    )
  }
}
//重写VueRouter.prototype身上的replace方法了
VueRouter.prototype.replace = function (location, resolve, reject) {
  if (resolve && reject) {
    originReplace.call(this, location, resolve, reject)
  } else {
    originReplace.call(
      this,
      location,
      () => {},
      () => {}
    )
  }
}
const router = new VueRouter({
  routes
})
router.beforeEach((to, from, next) => {
  if (!Cookie.get('token') && to.path !== '/login') {
    next({ path: '/login' })
  } else if (Cookie.get('token') && to.path === '/login') {
    next({ path: '/home' })
  } else {
    next()
  }
})
export default router
